Add SAVE s2s protocol command

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@11660 e03df62e-2008-0410-955e-edbf42e46eb7

5 files changed, 67 insertions, 9 deletions

diff --git a/src/modules/m_spanningtree/nickcollide.cpp b/src/modules/m_spanningtree/nickcollide.cpp
index ba83b62db..a723c114f 100644
--- a/src/modules/m_spanningtree/nickcollide.cpp
+++ b/src/modules/m_spanningtree/nickcollide.cpp
@@ -25,7 +25,7 @@
  * Yes, this function looks a little ugly.
  * However, in some circumstances we may not have a User, so we need to do things this way.
  * Returns 1 if colliding local client, 2 if colliding remote, 3 if colliding both.
- * Sends SVSNICKs as appropriate and forces nickchanges too.
+ * Sends SAVEs as appropriate and forces nickchanges too.
  */
 int TreeSocket::DoCollision(User *u, time_t remotets, const std::string &remoteident, const std::string &remoteip, const std::string &remoteuid)
 {
@@ -86,11 +86,11 @@ int TreeSocket::DoCollision(User *u, time_t remotets, const std::string &remotei
 
 	/*
 	 * Cheat a little here. Instead of a dedicated command to change UID,
-	 * use SVSNICK and accept the losing client with its UID (as we know the SVSNICK will
+	 * use SAVE and accept the losing client with its UID (as we know the SAVE will
 	 * not fail under any circumstances -- UIDs are netwide exclusive).
 	 *
 	 * This means that each side of a collide will generate one extra NICK back to where
-	 * they have just linked (and where it got the SVSNICK from), however, it will
+	 * they have just linked (and where it got the SAVE from), however, it will
 	 * be dropped harmlessly as it will come in as :928AAAB NICK 928AAAB, and we already
 	 * have 928AAAB's nick set to that.
 	 *   -- w00t
@@ -100,13 +100,12 @@ int TreeSocket::DoCollision(User *u, time_t remotets, const std::string &remotei
 	{
 		/*
 		 * Local-side nick needs to change. Just in case we are hub, and
-		 * this "local" nick is actually behind us, send an SVSNICK out.
+		 * this "local" nick is actually behind us, send an SAVE out.
 		 */
 		parameterlist params;
 		params.push_back(u->uuid);
-		params.push_back(u->uuid);
 		params.push_back(ConvToStr(u->age));
-		Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SVSNICK",params);
+		Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 
 		u->ForceNickChange(u->uuid.c_str());
 
@@ -119,9 +118,9 @@ int TreeSocket::DoCollision(User *u, time_t remotets, const std::string &remotei
 		/*
 		 * remote side needs to change. If this happens, we will modify
 		 * the UID or halt the propagation of the nick change command,
-		 * so other servers don't need to see the SVSNICK
+		 * so other servers don't need to see the SAVE
 		 */
-		WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" SVSNICK "+remoteuid+" " + remoteuid + " " + ConvToStr(remotets));
+		WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" SAVE "+remoteuid+" "+ ConvToStr(remotets));
 
 		if (remote)
 		{
diff --git a/src/modules/m_spanningtree/save.cpp b/src/modules/m_spanningtree/save.cpp
new file mode 100644
index 000000000..25f811267
--- /dev/null
+++ b/src/modules/m_spanningtree/save.cpp
@@ -0,0 +1,52 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
+ *
+ * This program is free but copyrighted software; see
+ *            the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include "commands/cmd_whois.h"
+#include "commands/cmd_stats.h"
+#include "socket.h"
+#include "xline.h"
+#include "../transport.h"
+#include "socketengine.h"
+
+#include "main.h"
+#include "utils.h"
+#include "treeserver.h"
+#include "treesocket.h"
+
+/* $ModDep: m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/treesocket.h */
+
+/**
+ * SAVE command - force nick change to UID on timestamp match
+ */
+bool TreeSocket::ForceNick(const std::string &prefix, parameterlist &params)
+{
+	if (params.size() < 2)
+		return true;
+
+	User* u = this->ServerInstance->FindNick(params[0]);
+	time_t ts = atol(params[1].c_str());
+
+	if (u && u->age == ts)
+	{
+		Utils->DoOneToAllButSender(prefix,"SAVE",params,prefix);
+
+		if (!u->ForceNickChange(u->uuid.c_str()))
+		{
+			this->ServerInstance->Users->QuitUser(u, "Nickname collision");
+		}
+	}
+
+	return true;
+}
+
diff --git a/src/modules/m_spanningtree/svsnick.cpp b/src/modules/m_spanningtree/svsnick.cpp
index fe08b9ee2..48e0c638a 100644
--- a/src/modules/m_spanningtree/svsnick.cpp
+++ b/src/modules/m_spanningtree/svsnick.cpp
@@ -29,7 +29,7 @@
 /** Because Andy insists that services-compatible servers must
  * implement SVSNICK and SVSJOIN, that's exactly what we do :p
  */
-bool TreeSocket::ForceNick(const std::string &prefix, parameterlist &params)
+bool TreeSocket::SVSNick(const std::string &prefix, parameterlist &params)
 {
 	if (params.size() < 3)
 		return true;
diff --git a/src/modules/m_spanningtree/treesocket.h b/src/modules/m_spanningtree/treesocket.h
index e9830f9ad..390978791 100644
--- a/src/modules/m_spanningtree/treesocket.h
+++ b/src/modules/m_spanningtree/treesocket.h
@@ -294,6 +294,9 @@ class TreeSocket : public BufferedSocket
 	/** Because Andy insists that services-compatible servers must
 	 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
 	 */
+	bool SVSNick(const std::string &prefix, parameterlist &params);
+
+	/** SAVE to resolve nick collisions without killing */
 	bool ForceNick(const std::string &prefix, parameterlist &params);
 
 	/** PRIVMSG or NOTICE with server origin ONLY
diff --git a/src/modules/m_spanningtree/treesocket2.cpp b/src/modules/m_spanningtree/treesocket2.cpp
index 085f14117..e76b98568 100644
--- a/src/modules/m_spanningtree/treesocket2.cpp
+++ b/src/modules/m_spanningtree/treesocket2.cpp
@@ -413,6 +413,10 @@ bool TreeSocket::ProcessLine(std::string &line)
 			}
 			else if (command == "SVSNICK")
 			{
+				return this->SVSNick(prefix,params);
+			}
+			else if (command == "SAVE")
+			{
 				return this->ForceNick(prefix,params);
 			}
 			else if (command == "OPERQUIT")